Last Updated & Fact Checked: March 21, 2026
Are you trying to decide between the Canon EF 50mm F/1.4 USM and the Canon EF 50mm F/1.8 STM?
Product Versus will provide you with all the product details so you can quickly compare the facts to find which product is right for you – the Canon EF 50mm F/1.4 USM or the Canon EF 50mm F/1.8 STM – and find out exactly what the differences are.
Both the Canon EF 50mm F/1.4 USM and the Canon EF 50mm F/1.8 STM are quality products, so read on to find out which one is best for your needs!
Canon EF 50mm F/1.4 USM quick facts
Canon EF 50mm F/1.8 STM quick facts
Canon EF 50mm F/1.4 USM product details
Bestseller No. 1
Canon EF 50mm f/1.4 USM Standard and Medium Telephoto Lens for Canon SLR Cameras, Fixed
- Standard focal length 50 millimeter lens is effective in a multitude of shooting situations and ideal for day-to-day shooting
- Elements, Groups: 7 by 6, Diaphragm: Blades 8, Filter Thread: Font 58 millimeter. Minimum focusing distance: 17.8 inch
- An f 1.4 maximum aperture provides clear imaging in low light situations and shallow depth of field
- Ultrasonic autofocus motor (USM) operation is fast, smooth and virtually silent
- 2 high-refraction lens elements and new Gaussian optics eliminate astigmatism and suppress astigmatic difference
Bestseller No. 2
Canon EF 50mm f/1.8 STM Lens, Black
- 50 millimeter focal length and maximum aperture of f/1.8
- Great for portraits, action, and nighttime photography; Angle of view (horizontal, vertical, diagonal): 40º, 27º,46º
- Minimum focusing distance of 1.15 feet (0.35 meter) and a maximum magnification of 0.21x
- Stepping motor (STM) delivers near silent, continuous move Servo AF for movies and smooth AF for stills
- 80 millimetre effective focal length on APS C cameras, 50 millimetre on full frame cameras. Lens construction: 6 elements in 5 groups
Bestseller No. 3
Canon EF 50mm f/1.4 USM Standard & Medium Telephoto Lens for Canon SLR Cameras - Fixed (Renewed)
- Standard focal length 50mm lens is effective in a multitude of shooting situations and ideal for day-to-day shooting
- Elements/Groups: 7/6; Diaphragm: Blades 8; Filter Thread: Font 58mm; An f/1.4 maximum aperture provides clear imaging in low light situations and shallow depth of field
- Ultrasonic autofocus motor (USM) operation is fast, smooth and virtually silent
- Two high-refraction lens elements and new Gaussian optics eliminate astigmatism and suppress astigmatic difference
Canon EF 50mm F/1.8 STM product details
Bestseller No. 1
Canon EF 50mm f/1.8 STM Lens, Black
- 50 millimeter focal length and maximum aperture of f/1.8
- Great for portraits, action, and nighttime photography; Angle of view (horizontal, vertical, diagonal): 40º, 27º,46º
- Minimum focusing distance of 1.15 feet (0.35 meter) and a maximum magnification of 0.21x
- Stepping motor (STM) delivers near silent, continuous move Servo AF for movies and smooth AF for stills
- 80 millimetre effective focal length on APS C cameras, 50 millimetre on full frame cameras. Lens construction: 6 elements in 5 groups
Bestseller No. 2
Canon EF 50mm f/1.8 STM Lens International Version (No warranty)
- 50mm focal length and maximum aperture of f/1.8
- Great for portraits, action, and nighttime photography
- Minimum focusing distance of 1.15 ft. (0.35m) and a maximum magnification of 0.21x
- Stepping motor (STM) delivers near silent, continous Move Servo AF for movies and smooth AF for stills
- 80mm effective focal-length on APS-C cameras, 50mm on full-frame cameras
Bestseller No. 3
Canon EF 50mm f/1.8 STM Lens (Renewed)
- 50mm focal length and maximum aperture of f/1.8
- Great for portraits, action, and nighttime photography
- Minimum focusing distance of 1.15 ft. (0.35m) and a maximum magnification of 0.21x
- Stepping motor (STM) delivers near silent, continous Move Servo AF for movies and smooth AF for stills
New products & alternatives to the Canon EF 50mm F/1.4 USM and the Canon EF 50mm F/1.8 STM
New
Canon EF 50mm f/1.2L USM Lens | Professional L-Series Prime with Ultra-Fast f/1.2 Aperture, Advanced Optics & Fast USM Autofocus | for Portraits & Creative Photos (1257B002) + Adapter EF-EOS R + More
- Canon USA Authorized. Items Include: Canon EF 50mm f/1.2L USM Lens, Canon Mount Adapter EF-EOS R, 64GB Memory Card, Camera Bag
- Designed as a premium normal-length prime, the Canon EF 50mm f/1.2L USM delivers a natural perspective that excels for portraits, weddings, street photography, and creative everyday use. Its field of view closely matches human vision, making compositions feel intuitive while offering exceptional subject emphasis and visual separation.
- The exceptionally bright f/1.2 maximum aperture enables powerful low-light performance and extreme depth-of-field control, allowing photographers to isolate subjects with smooth, dramatic background blur. This wide aperture supports faster shutter speeds in dim environments and gives creatives refined control over focus transitions and selective emphasis.
- Image quality is driven by an advanced optical design that incorporates a precision-molded aspherical element to reduce spherical aberrations and distortion. Canon’s Super Spectra coating further minimizes flare and ghosting, delivering improved contrast, accurate color reproduction, and consistent clarity even when shooting in challenging lighting conditions.
- Built for professional reliability, this L-series lens features weather sealing to resist dust and moisture during demanding shoots. A ring-type Ultrasonic Motor provides fast, silent autofocus with full-time manual override, while the rounded eight-blade diaphragm enhances background rendering for smooth, aesthetically pleasing bokeh.
New
Canon EF 50mm f/1.2L USM Lens | Professional L-Series Prime with Ultra-Fast f/1.2 Aperture, Advanced Optics & Fast USM Autofocus | for Portraits & Creative Photography (1257B002) + 64GB Card + Bag
- Canon USA Authorized. Items Include: Canon EF 50mm f/1.2L USM Lens, 64GB Memory Card, Camera Bag
- Designed as a premium normal-length prime, the Canon EF 50mm f/1.2L USM delivers a natural perspective that excels for portraits, weddings, street photography, and creative everyday use. Its field of view closely matches human vision, making compositions feel intuitive while offering exceptional subject emphasis and visual separation.
- The exceptionally bright f/1.2 maximum aperture enables powerful low-light performance and extreme depth-of-field control, allowing photographers to isolate subjects with smooth, dramatic background blur. This wide aperture supports faster shutter speeds in dim environments and gives creatives refined control over focus transitions and selective emphasis.
- Image quality is driven by an advanced optical design that incorporates a precision-molded aspherical element to reduce spherical aberrations and distortion. Canon’s Super Spectra coating further minimizes flare and ghosting, delivering improved contrast, accurate color reproduction, and consistent clarity even when shooting in challenging lighting conditions.
- Built for professional reliability, this L-series lens features weather sealing to resist dust and moisture during demanding shoots. A ring-type Ultrasonic Motor provides fast, silent autofocus with full-time manual override, while the rounded eight-blade diaphragm enhances background rendering for smooth, aesthetically pleasing bokeh.
New
Canon EF 50mm f/1.8 STM Lens (Renewed) (Lens w/PIXIBYTES Travel Accessories Bundle)
- A unique and indispensable addition to Canon's series of EF lenses, the 50 millimeter focal length and maximum aperture of f/1.8. It is a standard lens type.
New
Canon RF 50mm f/1.8 STM Lens | Compact Standard Prime with Bright f/1.8 Aperture & Smooth STM Autofocus | for Portraits, Street, & Everyday Photography (4515C002) + Adapter EF-EOS R + Bag + 64GB Card
- Canon USA Authorized. Items Include: Canon RF 50mm f/1.8 STM Lens (Canon RF), Canon Mount Adapter EF-EOS R, Shoulder Bag, 64GB Memory Card
- The Canon RF 50mm f/1.8 STM is a compact, lightweight, and affordable normal prime designed for full-frame RF-mount mirrorless cameras. Its versatile 50mm focal length delivers a natural field of view, perfect for portraits, street scenes, and everyday photography, while its sleek form makes it ideal for travel and casual shooting.
- The bright f/1.8 maximum aperture enables shooting in low-light environments and allows for creative depth of field control, producing beautifully blurred backgrounds and subject isolation. This fast aperture also enhances handheld performance, reducing the need for flash in dimly lit situations.
- Incorporating one precision-molded aspherical element, the lens effectively reduces spherical aberrations and distortion to maintain crisp detail and accurate subject rendering. Canon’s Super Spectra Coating minimizes ghosting and flare, ensuring vivid color accuracy and strong contrast in backlit or bright conditions.
- The STM stepping motor delivers smooth, near-silent autofocus that’s ideal for both stills and video recording. A customizable Control Ring provides direct access to exposure adjustments like aperture, ISO, and exposure compensation, while the rounded seven-blade diaphragm produces pleasing, soft bokeh.
New
Canon RF 50mm f/1.8 STM Lens | Compact Standard Prime with Bright f/1.8 Aperture & Smooth STM Autofocus | for Portraits, Street, Low-Light & Everyday Photography (4515C002) + Shoulder Bag + 64GB Card
- Canon USA Authorized. Items Include: Canon RF 50mm f/1.8 STM Lens (Canon RF), Shoulder Bag, 64GB Memory Card
- The Canon RF 50mm f/1.8 STM is a compact, lightweight, and affordable normal prime designed for full-frame RF-mount mirrorless cameras. Its versatile 50mm focal length delivers a natural field of view, perfect for portraits, street scenes, and everyday photography, while its sleek form makes it ideal for travel and casual shooting.
- The bright f/1.8 maximum aperture enables shooting in low-light environments and allows for creative depth of field control, producing beautifully blurred backgrounds and subject isolation. This fast aperture also enhances handheld performance, reducing the need for flash in dimly lit situations.
- Incorporating one precision-molded aspherical element, the lens effectively reduces spherical aberrations and distortion to maintain crisp detail and accurate subject rendering. Canon’s Super Spectra Coating minimizes ghosting and flare, ensuring vivid color accuracy and strong contrast in backlit or bright conditions.
- The STM stepping motor delivers smooth, near-silent autofocus that’s ideal for both stills and video recording. A customizable Control Ring provides direct access to exposure adjustments like aperture, ISO, and exposure compensation, while the rounded seven-blade diaphragm produces pleasing, soft bokeh.
Our conclusion on the Canon EF 50mm F/1.4 USM vs Canon EF 50mm F/1.8 STM
Both the Canon EF 50mm F/1.4 USM and the Canon EF 50mm F/1.8 STM are high quality products and we are sure you will be happy with either one. In the end it comes down to your budget and the value for money you are looking for.
Either way, the Canon EF 50mm F/1.4 USM and the Canon EF 50mm F/1.8 STM are both excellent products that will more than do their job!